Abstract: This paper deals with the effects of different shading conditions on the antioxidant enzymatic system and photosynthesis of centipedegrass. The results showed that being treated with shaping, the activity of protective enzymes such as POD, SOD and APX, activity of PAL and content of MDA declined gradually with the enhanced shading degree. To protect the antioxidant enzymes system is an emergency passive way, when the productive rate of activated oxygen is low, the activity of the protective enzymes is also at a low level. The content of soluble protein and sugar decreased gradually with the enhanced shading degree, so as Pn, Tr, Gs, and WUE. Intercellular space and concentration of CO2 increased with the enhanced shading degree. In the shading condition, non-stomatal factor arose decreasing of the photosynthetic rate. The light saturation point of centipedegrass was very high in the control, this mean centipedegrass had a high ability in using strong light. The light compensation point and the light saturation point trended to sustaining declined with the enhanced shading degree. While AQY trended to increase in different degree of shading treated. The results indicated that centipedegrass had a adaptability to weak light, and it had good prospect o{ applying exploitation